Accession Number : AD0821837

Title :   TIDE LEVEL AND BOTTOM FRICTION EFFECTS ON WAVE REFRACTION AS DETERMINED BY NUMERICAL WAVE REFRACTION PROCEDURES.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Farrell, Charles Augustus, Jr

Report Date : JUN 1967

Pagination or Media Count : 66

Abstract : Numerical wave refraction programs permit a detailed study of the transformation of wave energy as waves move from deep water to shallow water. By eliminating the subjectivity that is present with hand drawn diagrams the effect of small variations in the initial assumptions and wave conditions can be investigated. The effects on wave refraction of tide level changes and bottom friction are investigated here. It is demonstrated that a uniform increase in water level as would be caused by tidal fluctuations can cause a significant change in the wave refraction pattern for a given nearshore region. A computing procedure is developed to permit numerical refraction programs to account for bottom friction. The reduction in wave height caused by bottom friction depends primarily on bottom slope; this relation is shown in tabular and graphical form. (Author)

Descriptors :   (*OCEAN WAVES, REFRACTION), (*TIDES, OCEAN WAVES), NUMERICAL METHODS AND PROCEDURES, OCEAN BOTTOM, COMPUTER PROGRAMS, HEIGHT FINDING, NUMERICAL ANALYSIS, PREDICTIONS, OCEAN BOTTOM TOPOGRAPHY, GRAPHICS, TABLES(DATA), AMPHIBIOUS OPERATIONS, ENERGY, FRICTION, THESES.

Subject Categories : Physical and Dynamic Oceanography
      Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE